Demon Seeding

Story by Mahiri Morahan on SoFurry

, , , , , , , , , , ,

#1 of Patreon Stories

Ever wondered how Mahiri ended up with a half-demon leopard-spotted shark daughter? Find out here!

There's always been a part of Mahiri that's wanted to be female, even if just temporarily. The idea of being rutted, knocked up, bred ... it gets him all squirmy at night. Shirazi knows. Of course she does. And there's plenty of danger that comes with letting an unhinged demon in on your private fantasies. They might just come true, when you least expect it.

Contains: Gender transformation, rough demonic sex, and breeding!

This is my first story done for my new Patreon page! Every month, I'll be uploading a new story featuring smutty canon happenings among my characters. They stay exclusive there for about a month, then I'll upload them here! https://www.patreon.com/mahiri


Why was she a shark? Mahiri had long since learned to avoid wasting time asking questions about whatever Shirazi was doing. The answer was always the same: because she felt like it. The hyena had taken on the form of a manically grinning, red-eyed shark, looming there in the living room as soon as he got home from work. She was pacing back and forth, clanking her jaws together, still all silver and black with her usual hyena stripes, her thick tail dragging along the floor as she walked. Not to mention she was completely naked, sharkskin sleekly shining in the crimson sunlight streaming through the nearby window. Maybe he was just imagining it, but the light seemed redder than normal.

As much as her new appearance meant she must have been in some sort of mood, one potentially dangerous or at least troublesome, he couldn't help but admire her up and down anyway. She at least gave him the chance to set his work stuff down on the nearby kitchen counter, looming there, swaying her hips, her pitch black cock swinging right along with every motion, hard enough she was pumping out a steady, oozing mess of pre. It was dripping all the way to the carpet, adding a faint sound like raindrops to go along with the skull-rattling snickers shuddering through her body. Her form was looking firmer than usual, some taut, well-defined muscle flexing as she writhed on the spot with that barely contained lust and nonspecific insanity, slowly rocking her stripey booty back and forth as if gently fucking the air itself, her many interlocked teeth gleaming with thick saliva. She quirked her head at him, her gaze remaining fixed on him even while she suggestively humped in his direction, and then she simply pointed a finger, firmly and decisively, not saying a word.

Shrugging it off, he offered her a friendly greeting. "Hey Shiraz-"

He stopped mid-syllable. That wasn't his voice. The words came out in a much higher tone than usual, sounding softer, more feminine. Stepping back, he looked down at himself, barely able to even find his feet around the shape of a newly acquired bust. The girly leopard, already easily mistaken for female even when he wasn't wearing something particularly hip-hugging, had in a moment gone through an effortless transformation into a leopardess. All it took was a gesture, and she was sporting a pair of breasts that bulged out beneath her top, uncomfortably confined to the point they nearly popped a button free. She set to loosening it, then just pulled the whole shirt right up over her head, leaving those plump feline tits perpetually bouncing until she caught hold of them, jiggling in her grasp. And then she squeezed deep into those ample curves, unable to help enjoying that plump gift the demon had given him, even if she hadn't exactly asked first.

She didn't need to look or touch to know how thorough the transformation had been. Just seeing the sleek-skinned shark stalking forwards, drooling, gnashing her many teeth, that was enough to leave the leopardess increasingly warm and wet until she was shaking at the knees. Staggering back, she almost seemed to cower away from the advancing demon, though it was just for lack of balance. She was topless, helpless, quivering with a sudden need that permeated her entire being, leaving herself soaking into her panties - which she'd already been wearing even before the change, conveniently enough. As soon as the shark demon had her long-clawed hands pressing into the cat's hips, Mahiri was opening her mouth to desperately mewl, lashing her tail all about, nearly knocking things off of the counter with her own recklessness.

Shirazi's voice revealed the true extent of her current mental state. Mahiri recognized it immediately, a cold streak of fear briefly running down her spine just to hear it.

"CAT. It is TIME."

She sounded like she was speaking as a whole legion at once, echoing through the house, her mouth an abyss from which a thousand voices laughed and cried. Her eyes were brighter than usual, filling the room with an eerie glow. She was shuddering and twitching, her head violently leaning to one side again and again. Anyone who didn't know her would think something was terribly wrong. And there was, there always was - but hopefully it was the fun kind of wrong tonight. She went on, all but screaming with laughter right between every word.

"I told you I told you I TOLD you ... one day ... one day no more teasing, no more pretending. It's really going to happen. We're going to do it together."

"Do what?" Mahiri managed to sputter out before breaking into a startled yelp.

She was soaring through the air, propelled by the shark's demonic strength, treated like she weighed nothing. The leopardess could only vaguely flail, occasionally shoving at the demon's jaws when they got too close, snapping right in front of her face with bites that would have hurt a whole lot if they met flesh and skin. She didn't trust Shirazi to hold back, either. A few excessive chomps were pretty much standard fare for her, but adding the strength of a shark's deadly jaws to it, and Mahiri did all she could to keep any part of her from getting between those many teeth. She felt Shirazi's fingers digging extra deep into the curve of her ass, groping so hard it made the cat squeal a little, effectively incapacitating her for easy carrying.

They didn't go far. Shirazi hauled the squirming cat as far as the living room, pausing just in front of the coffee table. Mahiri tensed up. All her muscles went taut, and she began pushing at the shark's chest in a fruitless bid to escape her grasp, sensing exactly what was coming.

"Oh, no, Shirazi, don't ... "

It was too late. No sooner had those four words slipped from the cat's mouth and the demon was already raising her right up, lifting her by the hips until she was all but seated atop the shark's shoulders. A brief, terrible moment of anticipation had Mahiri swinging her arms for balance as she ducked her head to avoid banging it against the ceiling. And then she plunged down, gaining destructive momentum as the cackling shark powerbombed her directly through the wooden table, knocking the sense right out of the poor cat as she crashed down to the floor. The table snapped in two with a piercing crunch that Mahiri thought might well have been her spine, and the leopardess was left sprawled and stunned there in the wreckage, staring up at Shirazi with glazed eyes as she struggled to remember where she even was.

Mahiri was already very much helpless to resist the demon's whims, but she was even less able to defend herself by then. Shirazi didn't hesitate, pouncing atop the fallen cat with a scream of laughter, grabbing hold of the leopard's belt and ripping right through the leather. She tossed the pieces over her shoulder, a clank of the buckle hitting something an unimportant sound in heat of the moment, and soon after came the noise of fabric tearing. At least she was mostly careful with her claws, only pricking the cat's skin slightly as she viciously stripped Mahiri naked to the spots, throwing shreds of clothing into the air to rain down on the both of them like confetti. She was usually pretty good about replacing things of Mahiri's she had destroyed accidentally or intentionally. It was her own flesh the cat was more worried about, seeing the frenzy that fuelled the demon, leaving the drooling shark moving with such haste it was hard to even see her clearly.

She got a much better look when Shirazi seized her by the skull, pressing fingers into her temples as she yanked the leopard's face so close to hers she was shouting directly into Mahiri's mouth.

"I told you. I warned you. Someday. When you've almost forgotten. I'm going to give you a pussy, and then I'm going to breed you."

Lunging backwards, she wickedly laughed at the ceiling, before plunging back down and locking her teeth right around the cat's soft white throat, biting down with terrifying precision and power, just hard enough to make the breath stop short in the leopard's chest, to cut off her attempt at replying, without actually piercing the skin. It was close, the pointed tips of those deadly chompers pressing firmly enough it was hard to even swallow properly. All she could do was breathe slowly and try not to shiver, which was proving increasingly difficult as that trembling warmth lit up brightly between her thighs, leaving her with a sex so slick she was streaming juices right down to the base of her tail, marking her fur down dark with the soaking mess.

Shirazi still spoke fine without moving her mouth, lashing her forked tongue against the feline's jugular.

"You said yes. You wanted it. You've always wanted it. And now I'm going to do it."

She drew back, releasing the cat from that deadly grip, drawing her tongue over the indents her teeth left behind. Her voice dropped to a wet whisper, hissing like a serpent.

"I'm going to knock you up, little miss Mahiri. You're going to be my leopardess in heat, and you're going to swell with my seed. We're going to make something new together."

Mahiri could only whimper. Not out of fright, not out of dismay, but rather a soft, vulnerable little mewl that communicated her fiery desire better than words ever could. She was flooded, dripping, clenching up tight as if to orgasm right then and there at the mere thought. Her body was aflame with the need to breed with the mad demon, no matter what it meant. She could wonder about the reality of demonic pregnancy on her own time - now was the time for lust, for pleasure, for giving in and indulging every single reckless whim that came to them. Just in case Shirazi had any doubts, or might have shown the slightest of restraint, Mahiri made sure to silently nod her head, her lower lip quivering as if she were ready to cry, but that was only the aching desire running through her veins. She'd gone into needy ruts before as a male, but she'd never been so thickly immersed in a scorching, commanding heat like the one currently making her insides twitch and flex in anticipation.

Shirazi never was one for hesitation, and she wasn't teasing either. She snatched the cat by the thighs, hoisted those spotty legs right up over her shoulders, bending the feline in two, and plunged forth with a single thrust. All at once, she was spreading those glistening lips wide open, stuffing Mahiri full of pitch black demon dick, sending her overflowing juices splashing over that rough silver sharkskin as the demon buried herself deep with a stratospheric squelch. The cat might as well have been a puddle by then, absolutely gushing before she even reached the climax charging up within her muscles, the sopping smacks of fat demon nuts thumping up against the cat's pussy all but drowned out by the screeching noise that burst from the leopardess. Shirazi joined in, cackling in a dozen voices at once, sounding like a delighted audience to their depravity, fucking and breeding there in the ruins of what had once been a pretty stylish coffee table. It really tied the room together.

Some part of Mahiri wanted to dirty talk, wanted to whine and moan and beg for it until her voice gave out. Yet somehow she knew that wouldn't have felt right. There was no need to work the demon up any further, anyway. One thrust, and she was already pulling back, launching into brutal pounding that defied all laws of momentum. She didn't build up to anything, she just fucked the cat, rutting her like an animal while she relentlessly slammed her full of shark dick. When the leopard started spreading her arms out, looking for purchase, for balance, for something to hold on to, Shirazi just seized her by the wrists and pinned her flat. Face to face, tits to tits, Mahiri had nothing to look at but that maniacal glare and those many shining teeth, inches from her face, their jagged grin somehow driving her to even greater heights of absolute need, her mind wiped clean but for the presence of that undeniable urge to be bred.

Their bodies hammered against one another in an increasingly harsh rhythm. The leopard could hardly compare to the stamina or durability of a demon, leaving her slumping down, exhausted and slightly battered, her hips gone numb from the repeated impact, but her cunt remaining clamped around every single inch of demon cock inside of her. She was helpless, barely more than a ragdoll jiggling every time one of those nasty thrusts quaked through her soft body, jiggling the breasts she'd been given, wobbling her ass against the floor. Shirazi bore down on her harder, faster, folding her completely in half until the cat's ankles were right up to her cheeks. Her flexibility made such a thing possible without snapping her in two, though she was still getting broken in another way, the constant schlick of fat cock pumping in and out of her growing muffled and distorted as her senses slipped towards rapturous numbness.

The pleasure she was feeling spilled onto her face, leaving her eyes rolling, their gleaming green partly hidden in favour of stark white as if she were possessed. A silly smile curled her lips, her jaws stretching open and hanging loose, shiny saliva running down the length of her protruding tongue. It hung so freely that it touched the floor, or the table anyway, the cat drooling on herself as her mind fell blank, knowing only ecstasy and need. She began to giggle, her body shuddering in between the swift slams of shark hips to her own, a little touch of the demon's madness spreading to her. Shirazi was already pouring out enough pre inside her to fill a condom. The deed was probably already done. But Mahiri wasn't going to be satisfied, wasn't even going to be herself until she was bloated with the demon's potent seed. There was no doubt in her mind, but there wasn't much of anything else anymore either, drowned out and overloaded by the effort to even process how good it felt to have a plump demon cock filling out the contracting depths of her richly fertile pussy. She was going to be a mom.

With a movement like a descending roller-coaster, and with just as much screaming, Shirazi arched her back into a massive thrust forth, completely burying herself to the balls in Mahiri's sex, hitting her in all the right spots until the leopard had no choice but to cum. She erupted in shrieking that soon broke into a window-shaking snarl, and the shark demon snarled back before breaking back into her echoing, maddening laughter. Their neighbours could definitely hear it. The whole block probably could, that terrifying cacophony bursting into the air as the breeding pair climaxed together. Demon seed flowed thick and strong into the feline's womb, swiftly swelling out her belly from lightly rounded to bloated and engorged, sloshing with the violent twitches and convulsions that ran through them both. Mahiri gushed right back, squirting a great downpour of heated juices, the scent of horny cat a sweetly enticing contribution to the pheromone-laden aroma wafting over them like a blanket. They gasped and they shook and they bit each other, even drawing a little blood here and there. And when it was over, Mahiri fainted for a while, leaving just the demon all alone, holding the knocked up kitty down, emptying her swollen nuts inside of her until she was completely, absolutely certain her seed would take.

Of course she was going to take advantage of a temporarily unconscious feline. She pulled out with a room-filling schlorp, sending a sloppy stream running down to the base of the leopardess' tail, cum puddling there between her thighs. But the sharkess wasn't done just yet, and with the cat's womb pumped full, she was just going to have to find a place for the rest. She grasped the base of her cock, squeezing harshly, licking the little drops of red off the points of her teeth as she marked the kitty down with hot demon cream. She splattered Mahiri from thighs to sex to belly, and then mounted over that cum-fattened cat to splatter her pretty tits and face in a few thorough layers of hot white shark spunk. When she was satisfied and her maniacal urges, she simmered down and laid herself out beside the broken cat, licking at her musky facemask, the sweltering touch of her tongue just enough to rouse her back to semi-aware consciousness.

Mahiri blinked a few times, tried to move, and then simply groaned. It wasn't pain exactly. Most of her body had gone mercifully numb. It was more just the weight, and the exhaustion. Not to mention the orgasm singing through her veins, making every single muscle feel like it was glowing with pleasure, bringing out her deepest rumbles in a matter of moments. She looked down at her belly, shakily reached for it, straining just to raise a single arm. Shirazi took her by the wrist and guided both their hands onto that bloated middle, rubbing in slow circles around its engorged heft while licking the transformed feline with swift strokes of her forked tongue. They remained there in that humid moment, stewing together in each other's scents, the room rich with the musk of mating. Her voice was a trembling mewl of awe.

"We really did it ..."

Shirazi spoke much more softly than before. Her voice was simply her own, her words low and gentle, almost soothing, if someone like her could ever be.

"Of course we did, kitty. I know you always wanted to. I felt you quivering whenever I would mention it. All that was holding you back was reason. You just needed to forget about that for a while."

That made the leopardess snort. "That's ... uh, I mean, there are a lot of reasons why we probably shouldn't have. And, no offense, but most of them are you."

The shark's gleeful giggle made her whole body jump as if shocked.

"Don't worry so much. We're gonna do this right. I'll be right here with you the whole time."

Mahiri blinked in surprise, weakly tilting her head to the side.

"You know, I can tell you really mean that."

Shirazi rapidly nodded.

"Of course I do!" she blurted, almost sounding upset. Her next words were much gentler, the shift in demeanour almost startling to observe. "I care about you, kitty. And it's all because you taught me how that kind of thing even works."

It took some time to even properly process that unexpected outpouring of emotion from the demon. It might have just been a few words, but it was a side of her he had so rarely even seen before. After staring at her for a while, trying to measure her expression, looking for signs of mockery or deceit, but there was none. Seeing that uncharacteristic meekness on her face told her as much, and so she finally leaned in and gave the shark a kiss on the nose.

"Aw. Love you too, demonface. I mean that. I just, um, I didn't even know you felt that way. Or that you could."

"It's your fault. You showed me how all this nice-person stuff works. But I do! For real! You're a good cat. And you're mine." She playfully patted the cat's sloshing middle a few times, provoking a slight flinch. "I can't wait to watch you swell. We're going to have the most beautiful daughter anyone ever saw. You're gonna love her. You can teach her all about being good and whatever, and I'll teach her about demon stuff."

"This is all so crazy. You're so crazy. But it ..." Mahiri looked down to her belly, already rounded out to an effective preview of how she'd look in late-stage demonic pregnancy. "It feels good. I have to admit. I doubt I'm ready for having two demons around the house, but ... I trust you, Shirazi. Even if I probably shouldn't."

She slumped down, and the sharkess snuggled up beside her, throwing a leg over those cum-soaked thighs, nibbling on one of the cat's perked ears. Mahiri felt like she might very well have just fallen asleep right there, but before she could completely relax, a thought jolted into her head.

"Wait, daughter? How do you ..."

"You'll see! This is going to be fun!"

Mahiri bit her lip briefly, but eventually just mentally shrugged. She was committed now. Knocked up by a demon, carrying their hybrid offspring, stuck in a female form for the foreseeable future. It was going to take some explaining. But, all he really needed to say was Shirazi's name, and people would understand. The enduring thought remained even as he slipped into a sleep-like state of dazed bliss, the usual pleasure mixed in with those newfound feelings of affection, even adoration for the demon who used to terrify her. They were something more than friends now, though he doubted official designations were important to Shirazi. Even so, it seemed they were going to be spending a lot more time together, and Mahiri looked forward to getting closer with the stripey ball of madness, and to all the carnal pleasures that came with knowing someone as depraved as her. She just hoped she could keep up.